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About imllorente

Dr. Ignacio M. Llorente is a Full Professor in Computer Architecture and Technology at Universidad Complutense de Madrid, where he leads the Distributed Systems Architecture Group. He is co-leading research and development efforts, such as the OpenNebula VM Manager and the Globus GridWay Metascheduler, and involved in international research projects, such as EGEE-III, BEinGRID, RESERVOIR and Glbus Alliance.

The OpenNebula team is proud to announce the availability of OpenNebula 1.4 (Hourglass), a new stable release of the OpenNebula Virtual Infrastructure Manager.

OpenNebula focuses on incorporating bleeding edge technologies and innovations in many areas of virtual infrastructure management and Cloud Computing. OpenNebula 1.4 aims to be the swiss-army knife of Cloud Computing, letting you deploy any type of Cloud.

The OpenNebula team is proud to announce the availability of OpenNebula 1.4 (Hourglass), a new stable release of the OpenNebula Cloud Toolkit. OpenNebula focuses on incorporating bleeding edge technologies and innovations in many areas of virtual infrastructure management and Cloud Computing. OpenNebula 1.4 aims to be the swiss-army knife of Cloud Computing, letting you deploy any type of Cloud:

EC2 Query API interface on top of OpenNebula, so you can turn your OpenNebula installation in a Public Cloud

We have just announced the availability of OpenNebula 1.2, the second stable release of the project. This is an important milestone for the project and marks that most of the components of OpenNebula are now in place. OpenNebula 1.2 builds on the state-of-the-art technology for the distributed management of virtual infrastructures introduced with OpenNebula 1.0, bringing important improvements in the following areas: Network Management, Image Management, Scalability and Robustness, Configuration, Installation, and Documentation

Virtualization has proven to be a powerful enabler in the field of
distributed computing and has led to the emergence of the cloud
computing paradigm and the provisioning of Infrastructure-as-a-Service
(IaaS). This new paradigm raises challenges ranging from performance
evaluation of IaaS platforms, through new methods of resource management
including providing Service Level Agreements (SLAs) and energy- and
cost-efficient schedules, to the emergence of supporting technologies
such as virtual appliance management.

For the last three years, the VTDC workshop has served as a forum for
the exchange of ideas and experiences studying the challenges and
opportunities created by IaaS/cloud computing and virtualization
technologies. VTDC brings together researchers in academia and industry
who are involved in research, development and planning activities
involving the use of virtualization in the context of distributed
systems, where the opportunities and challenges with respect to the
management of such virtualized systems is of interest to the ICAC
community at large.

Authors are invited to submit original and unpublished work that
exposes a new problem, advocates a specific solution, or reports on
actual experience. Papers should be submitted as full-length 8 page
papers of double column text using single space 10pt size type on an
8.5×11 paper. Papers will be published in the proceedings of the
workshop. VTDC 2009 topics of interest include, but are not limited to:

Held in conjunction with the 4th International Conference on Grid and Pervasive Computing, GPC 2009, Geneva, 4-8 May 2009
Workshop website: http://sara.unile.it/wgcv

The Workshop on Grids, Clouds and Virtualization is an international forum which brings together researchers and practitioners working on different high-performance aspects of web/grid services, middleware and technologies including virtualization that enable grid-aware and cloud applications. The enabling technologies and middleware include tools to assemble together different resources such as parallel supercomputers, data archives, high-speed storage systems, advanced visualization devices and scientific instruments using high speed networks connecting geographically distributed devices and organizations. Many recent international efforts are actively fostering the development of virtualization technologies and solutions. The Workshop will allow exchanging ideas and results related to on-going grid and cloud computing research, focusing on different aspects of middleware, technologies and applications.

TOPICS

Creating breakthrough middleware and virtualization technologies for high-performance grid and cloud applications requires addressing several key computing problems which may lead to novel solutions and new insights in interdisciplinary applications. The focus of the workshop is on all forms of advances in grid, clouds and virtualization middleware/applications, and related topics. The workshop solicits novel papers on a broad range of topics, including but not limited to:

The proceedings of the workshop will be published by IEEE. Authors are invited to submit 8-page papers in IEEE 2-column format by December 20, 2008. Papers must be submitted to the following email address: wgcv@sara.unile.it

The results presented in the paper must be unpublished and not submitted for publication elsewhere, including the proceedings of other conferences or workshops. Papers will be peer-reviewed by at least three reviewers. Papers are evaluated with respect to originality, significance, clarity, and technical soundness. One author of each accepted paper will be expected to present the paper at the workshop.

As first post in this community blog, I would like to introduce one of the new projects within the Xen Community. We started OpenNebula a few years ago in order to provide an open-source alternative to commercial tools for the dynamic management of VMs on distributed resources. OpenNebula provides an efficient, dynamic and scalable management of Xen VMs within datacenters, private clouds, involving a large amount of virtual and physical servers. Let me enumerate its main features and provide some links for more details:

Open architecture and interfaces, allowing its integration with other tools in the virtualization ecosystem and its adaptation to the requirements of a given infrastructure.

Generic framework to define new VM placement policies. The default scheduling policy determines the best host to start a VM according to requirement and rank expressions consisting on infrastructure parameters. Support for advance reservation of capacity is provided through the Haizea VM-based lease manager.

Image management to transfer and clone VM images, using a modular component that can be easily extended and integrated with third-party developments; and networking management enabling the definition of virtual networks.

Dynamic scaling of service workloads by accessing Amazon EC2 to supplement local resources with cloud resources to satisfy peak or fluctuating demands. This functionality has been evaluated in the dynamic scaling of web servers and computing clusters.